Infinity Reference 475a vs Lightning Audio LA-4100MINI

 
Infinity Reference 475a
In Stock 
$149.99
  • 90 watts RMS x 4 at 2 ohms
  • 180 watts RMS x 2 in bridged mode
  • variable high- and low-pass filters
Add to Cart
Lightning Audio LA-4100MINI
In Stock 
$199.99
  • 150 watts RMS x 2 bridged at 4 ohms
  • variable high-pass filter on front channels
  • variable high- and low-pass filters on rear channels
Add to Cart

Product Features

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Condition New StockNew Stock
Performance Infinity Reference 475aLightning Audio LA-4100MINI
RMS Power Output (Wt x Channels)
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75 x 4
50 x 4
Peak Power Output (Wt x Channels)
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117 x 4200 x 4
Power at 2 Ohms (Wt x Channels)
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90 x 475 x 4
Bridged Power (Wt x Channels)
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180 x 2150 x 2
Minimum Impedance Bridged
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44
Minimum Impedance Unbridged
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22
Best Frequency Response
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10-100k Hz20-20k Hz
THD at Rated RMS Power
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1%1%
Signal to Noise Ratio
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85 dB95 dB
Input Voltage
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14.4v14.4v
Features Infinity Reference 475aLightning Audio LA-4100MINI
Amplifier Class
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ABAB
Low-Pass Crossover Frequency
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32-320 Hz20-250 Hz
Low-Pass Slope (dB/octave)
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12 dB12 dB/octave
High-Pass Crossover Frequency
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32-320 Hz50-250 Hz
High-Pass Slope (dB/octave)
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12 dB12 dB/octave
Bass Boost
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0-6 dBNo
Bass Boost Frequency
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50 HzN/A
Fan Cooled
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NoNo
Fuse Rating
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7060
Speaker Level Inputs
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NoNo
Preamp Outputs
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1 pairNo
Width (inches)
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912-7/8
Height (inches)
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2-11/162-5/16
Depth (inches)
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14-3/46-5/16
Parts Warranty
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1 Year1 Year
Labor Warranty
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1 Year1 Year
  Owner's ManualOwner's Manual
 Hands-on ResearchHands-on Research
 
Infinity Reference 475a
In Stock 
$149.99
Add to Cart
Lightning Audio LA-4100MINI
In Stock 
$199.99
Add to Cart

Video: Car Amplifier PowerWe describe the basics of deciding how much power an amplifier should have when you're trying to match it to your speakers or subwoofers.

Video: Car Amplifier ChannelsOne of the first steps in choosing an amplifier for your car audio system is to decide how you intend to use the amplifier, and thus how many channels it should have. This short video gives you a quick overview to help answer that question.